Head to head
0
Hard
1
0
Clay
2
Ryan Harrison's wins on the left · Gilles Simon's on the right · bar lengths share one scale
All meetings (4)
| 2018 | Winston-Salem | Hard | R32 | Ryan Harrison | W/O |
| 2012 | Roland Garros | Clay | R128 | Gilles Simon | 3-6 7-5 6-4 6-1 |
| 2012 | Davis Cup WG QF: FRA vs USA | Clay | RR | Gilles Simon | 6-2 6-3 |
| 2012 | Indian Wells Masters | Hard | R16 | Gilles Simon | 7-6(0) 5-7 6-1 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.